Ngokuphuculwa okuqhubekayo kokwakha amandla, izixhobo zokufaka i-insumpas yinxalenye ebalulekileyo yokwakha iindonga zangaphandle, eluphahleni, imigangatho kunye nezinye iinkqubo, kunye nentuthuzelo yesakhiwo. Kwiminyaka yakutshanje, ngokuphuhliswa kwetekhnoloji ye-inshol yokufakelwa, abaphandi kunye nabavelisi baqhubekile nokuvavanya izixhobo zokufakwa kwe-shormal kunye neendlela zabo zokulungiswa. Phakathi kwawo, hydroxypropyl Methylcelcelcelose (hpmc, hpmc, hpmcroxypropyl Methylcelcel) , ngakumbi kumasimi eenkqubo zangaphandle ze-tenser, izifaki ezomileyo, iingubo zengubo kunye namanye amasimi.
1.Basic Iimpawu ze-HPMC
I-HPMC sisisele i-etelulose ether efunyenwe ngokutshintsha kweekhemikhali kwesellulose yendalo. Iimpawu zayo eziphambili zibandakanya:
I-Solibuz yamanzi: I-HPMC inokwenza isisombululo se-colofal efanayo emanzini kunye nolwelo oluhle kunye nokusasazeka.
Ukutyibilika: Inesiphumo esiphakamileyo kwaye sinokunyusa kakhulu i-viscosity yolwelo kunye noxinzelelo olusezantsi.
Iipropathi zokwenza ifilimu: I-HPMC inokwenza ifilimu emdaka kumphezulu we-subtate ukonyusa umlinganiso wezinto zokufakwa.
Ukugcinwa kwamanzi: Inogcino lwamanzi, olunokuthintela ngokukuko kwamanzi ngaphambi kwexesha kwaye kwandise ixesha lokwakha izinto zokufakwa.
Utshintsho: ngokutshintsha isakhiwo se-phudmc, ukuluka kwayo, ukumiswa kwayo kunye nezinye iipropathi zingalungiswa ukuze kuhlangatyezwane neemfuno zezinto ezahlukeneyo zokufakelwa.
Ezi mpawu zikhethekileyo zinika amathuba e-HPMC
2. Indima ye-HPMC kwizixhobo zokuthambisa
Ukuphucula ububi kunye ne-adhesion
Kwinkqubo yokufaka i-ofisi yangaphandle, i-HPMC njenge-Binder inokuphucula kakhulu ukubitha phakathi kwezinto zokufakwa kunye nodonga olusisiseko. I-Abetheration yeZinto zokuThunyelwa kweMveli ezinje ngeBhodi yasePolystyrene (i-EPS) kunye neBhodi yePolystyrene (xp) ihlala ichaphazeleka zizinto zangaphandle zendalo (i-XPS) zihlala zichaphazeleka zizinto zangaphandle zokusingqongileyo, njengokuphumelela kunye nokutshintsha kobushushu. Ngokuphucula ububi okanye ukunamathela, i-HPMC inokuphucula amandla aphezulu phakathi kwezinto zokufakwa kunye ne-insementer, ukhusela iingxaki ezifana nokuzinza kunye nokuphucula ukuzinza kunye nokwenza uzinzo lwesakhiwo.
Ukuphucula ukwakhiwa
Intsebenzo yokwakha yezixhobo zokukhupha inxulumene ngqo nokusebenza kakuhle kokwakha kunye nesiphumo. I-HPMC inokuphucula ukusebenza kwezinto zokwakhiwa, ukubonelela ngolwelo olufanelekileyo kunye nokusebenza, ukunciphisa ukunganyangeki ngexesha lokwakha, kunye nokuqinisekisa ukuba abasebenzi bokwakha banokugqibezela imisebenzi yokwakha kakuhle. Umzekelo, ukongeza i-HPMC kumdaka owomileyo unokuphucula iprintations yodaka kwaye unyuse ixesha lokugcina umswakama, yenza udaka lube lomile ngexesha lokwakha kunye nokuphucula umgangatho wokwakha.
Ukuphucula intsebenziswano
I-HPMC inogcino lwamanzi ahle kakhulu, olunokulibazisa ukuvela kwamanzi, ukuvumela ukufunyanwa kwezinto zokufakwa ukuba ihlale imanyiwe ixesha elide, ngaloo ndlela iphucule i-sunder of thermation kunye nokukuphepha ukomisa kwaye kuphephe. Le ndawo ibaluleke ngokukodwa kwimimandla yemozulu ebandayo, njengoko iqinisekisa ukuba udaka lungaphuhlisa ngokupheleleyo iipropathi ezibonakalayo ngexesha lenkqubo enzima.
Amanzi kunye nokuchasana nokwaluphala
Ixesha elingaphezulu, ukrwada kunokuboniswa kumswakama kunye nee-UV, ukubangela ukonakaliswa kwentsebenzo. I-HPMC inemisebenzi ethile ye-HPMC kunye ne-anti-abalukileyo kwaye inokuphucula ukumelana kwemozulu kunye ne-UV yokuchasana kwezixhobo zokufakwa. Ngokongeza isixa esifanelekileyo se-HPMC, ukuxhathisa kwamanzi kwizinto zokufakelwa kunokusonda, ukuthintela ukubanjwa komthengisi ukusuka ekufumaneni amanzi kunye nokudumba, kunye nokuqinisekisa ukuba igcina i-inshonter egqwesileyo ixesha elide.
Phucula uzinzo lwe-thermal
Isakhiwo se-molecular se-HPMC iqulethe i-hydroxypropy kunye namaqela e-methyl, onika uzinzo oluhle lobushushu. Kwiimeko zobushushu obuphakamileyo, i-HPMC inokugcina uzinzo oluthile lwezakhiwo kwaye ayithanga lula, ukuthintela utshintsho olukhulu ekusebenzeni kwezinto zokufaka ezibangelwa kukuguquguquka kobushushu. Ke ngoko, kwizixhobo ezithile zokufakelwa i-irmal esetyenziswa kwiindawo zobushushu eziphezulu, ukongezwa kwe-HPMC kunceda ukugcina uzinzo lwentsebenzo yokufakelwa kwe-shormal.
3. Imizekelo yokusebenzisa i-HPMC kwii-Insumpas
Inkqubo yangaphandle yangaphandle
Kwiinkqubo zangaphandle zangaphandle, i-HPMC zihlala zisetyenziswa kunye nezinye izongezo (ezinje ngesamente, i-gypsum, njl. Njl.). Umsebenzi wayo ophambili kukwandisa ubumbano kunye nolwelo lodaka, phucula ububi phakathi kwebhodi yokufakelwa kunye nomphezulu wodonga oluphumayo, kwaye unciphise iingxaki kunye nomoya kunye nokukhukuliseka kwemvula.
I-Expresi yangaphandle
I-HPMC ikwasetyenziswa ngokubanzi kwimali engaphandle yodonga. I-Expreli yangaphandle i-Insulchings kufuneka inamathele kakuhle kunye nepropati elungileyo yefilimu. I-HPMC inokuphucula ngokukuko, ukubambelela kunye nokuchasana kwamanzi kwengqumbo, ukuqinisekisa ukuzinza kwexesha elide malunga nokudibana nokuchaphazeleka kwindalo.
udaka olosiweyo
Udaka olwawo luhlobo oluqhelekileyo lokufunyanwa kwesifundo. Ngokongeza i-HPMC, ayinakuphucula ukunamathela kuphela kodaka, kodwa iphucula ukugcinwa komswakama ngexesha lokwakha, ukwandisa ixesha lokusebenza, kunye nokuphucula ukusebenza kodaka. Ingakumbi kumaqondo obushushu asezantsi, ukugcinwa kwamanzi i-HPMC kunokuqinisekisa ukuba isiphumo sobubele obuhle bodaka.
Ukusetyenziswa kwe-HPMC kwi-intermal yokwahlula i-Inshol inophuculo olubalulekileyo lwentsebenzo. Ngokuphucula ububi, ukuphucula ukwakhiwa, ukuphucula ukusebenza kwamanzi, i-HPMOF kunye neepropathi zokulwa amanzi, i-HPMC inokuphucula ukusebenza kwezinto zokufakwa, ukwandisa ubomi babo ngenkonzo, kunye nokongeza iziphumo zosindiso. Njengeemfuno zecandelo lokwakha lokukhusela kunye nokulondolozwa kwamandla kuqhubekeka, i-HPMC inamachaphaza asetyenziselwa izicelo ezikwizixhobo zokufaka kunye nokuphuhlisa.
Ixesha lasemva: ngoFebruwari-15-2025